> The proof of the pudding is that the choke designed by > W8JI (Ameritron/RF > Parts is the only solenoid-wound choke that is good for 9 > bands that I have > ever encountered. The only explanation I can come up with > is that the gaps > between the windings are the reason for success. The gaps are indeed the key. For the reason I have described many times in the past. 73 Tom